Invented by Mikhail Kalashnikov. Quite possibly the most popular assault rifle in existence, mostly because of mass proliferation.

7.62x39mm Soviet, 30-round clip. Has countless variants. Today it is black-marketted by terrorist cells (mostly because the AK is easy to make).
The AK-47 has been reported to have certain performances that surpass that of the Colt M16 series, and one reason is because the AK doesn't contain as many moving parts (therefore, maintenance is very easy). The AK-47 can also brave any type of harsh condition and environment.

Originally developed and finalized by Mikhail Kalashnikov in the year 1947, the AK47 was meant to be a rifle for tank crews, who could not fit a full sized rifle into their tank. It was so successful that it was adopted by the Russian army, and exported to all of Russia's allies. It's most recognizable feature is its superb reliability, it will function in environments that other weapons would malfunction in. It fires 7.62 x 39mm ammunition(by comparison, an M16 fires 5.56 x 45mm).

This is the AK47 assault rifle. It is the preferred weapon of your enemy, and it makes a very distinct sound when fired at you.

1: AK-47 is an assault rifle designed in 1947 by Mikhail Kalashnikov.
2: Brought automatic rifle firepower to the masses.
3: Is highly reliable under all circumstances.
4: It is extremely CHEAP! You can get one for $275 in the US and $30 or less in others!
5: An old design that is still feared by the mighty US armed forces.

The world's absolute most proliferous assault rifle, with more than 90 million units currently existing. Commonly seen as a terrorist weapon, and for good reason, as it is relatively inexpensive, and very robust, able to brave extreme weather conditions. Chambered for the Russian 7.62 x 39 mm rifle cartridge.